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Topic Area: Nanotechnology

Displaying records 331 to 340.
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331. Secondary Ion Yield Matrix Effects in SIMS Depth Profiles of Si/Ge Multilayers
Topic: Nanotechnology
Published: 4/1/1989
Authors: John G Gillen, J M. Phelps, Randall W. Nelson, Peter Williams, Steven M. Hues
Abstract: Thin multilayer samples of Si/Ge, with individual layer thicknesses of 4-33 nm, have been analyzed by secondary ion mass spectrometry (SIMS) using Ar+, O2+ and Cs+ primary ion beams. Bombardment with both Ar+ and O2+ produced positive secondary ion d ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=902086

332. Characterization of SRM 1866 Using Spindle Stage Techniques
Series: OTHER
Report Number: 1866
Topic: Nanotechnology
Published: 11/21/1988
Authors: Jennifer R Verkouteren, J M. Phelps, Cynthia J Zeissler, Eric B Steel
http://nist.gov/manuscript-publication-search.cfm?pub_id=902152

333. SRM 8411: Report of Investigation, Research Material 8411 Mixed Asbestos Research Fiber
Series: OTHER
Topic: Nanotechnology
Published: 11/18/1988
Authors: Eric B Steel, J. J. Sheridan, Cynthia J Zeissler
http://nist.gov/manuscript-publication-search.cfm?pub_id=902149

334. Characterization of Standard Reference Material 2942, Ce-Ion-Doped Glass, Spectral Correction Standard for UV Fluorescence
Topic: Nanotechnology
Published: Date unknown
Authors: Paul C DeRose, Melody V Smith, Klaus Mielenz, Jeffrey R Anderson, Gary W Kramer
Abstract: Standard Reference Material (SRM) 2942 is a cuvette-shaped, Ce-ion-doped glass, recommended for use for relative spectral correction of emission and day-to-day performance verification of steady-state fluorescence spectrometers. Properties of this st ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=906188

335. Development of Multicolor Flow Cytometry Standards: Assignment of Equivalent Reference Fluorophores (ERF) Unit
Series: Journal of Research (NIST JRES)
Topic: Nanotechnology
Published: Date unknown
Authors: Lili Wang, Adolfas Kastytis Gaigalas
Abstract: A procedure is described for assigning values of the number of equivalent reference fluorophores (ERF) to microspheres labeled with a fluorophore designed to produce fluorescence in a given channel of a multicolor flow cytometer. There is a different ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=906632

336. Impact Energy Dependence of SF^d5^^u+^ Ion Beam Damage of Poly(Methyl Methacrylate) Studied by Time-of-Flight Secondary Ion Mass Spectrometry
Topic: Nanotechnology
Published: Date unknown
Authors: M S. Wagner, John G Gillen
Abstract: Recent advances in instrumentation for Secondary Ion Mass Spectrometry (SIMS) have focused on the application of polyatomic primary ions for enhancing molecular secondary ion signals of organic materials. A few studies have also noted that some polym ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=831310

337. Magnetic Field-Induced Biomimetic Self-Assemblies of Cobalt Nanoparticles
Topic: Nanotechnology
Published: Date unknown
Authors: Guangjun Cheng, D B Romero, Angela R Hight Walker
Abstract: Under the influence of a 300-Guass magnetic field, 15-nm Co nanoparticles can assemble into centimeter-long rigid chains in the colloidal solution. The magnetic field-induced (MFI) chains are retained after the removal of the magnetic field, but they ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=841868

338. Nanoparticle Release from Polymer Nanocomposites Used for Potable Water Infrastructure and Food Packaging: Current Progress & Beyond
Topic: Nanotechnology
Published: Date unknown
Authors: Andrew Whelton, T.V. Duncan , J.L. Koontz , Tinh Nguyen
Abstract: Nanoparticle (NP) enhanced polymers have the potential to revolutionize food packaging and water pipe performance, though release from these materials has gone relatively unstudied. A literature review was conducted to identify potential NP release p ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=908368

339. Role of Nanoparticles in Life Cycle of Nanocomposites
Topic: Nanotechnology
Published: Date unknown
Authors: Xiaohong Gu, Guodong Chen, Minhua Zhao, Stephanie S Watson, Paul E Stutzman, Tinh Nguyen, Joannie W Chin, Jonathan W. (Jonathan W.) Martin
Abstract: The objective of this study is to investigate the role of ZnO nanoparticles in the life cycle of a waterborne polyurethane (PU) nanocomposite during UV exposure. The effects of loadings and sizes of ZnO nanoparticles on photodegradation of ZnO/PU fil ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=905542

340. Competitive Adsorption of Thiolated Polyethylene Glycol and Mercaptoproprionic acid on Gold Nanoparticles Measured by Physical Characterization Methods
Topic: Nanotechnology
Published: 5/24/0010
Authors: De-Hao Tsai, Frank W DelRio, Robert I MacCuspie, Tae Joon Cho, Michael Russel Zachariah, Vincent A Hackley
Abstract: Adsorption kinetics between thiolated polyethylene glycol (SH-PEG) and mercaptoproprionic acid (MPA) on gold nanoparticles (Au-NP) were studied using dynamic light scattering (DLS) and electrospray differential mobility analysis (ES-DMA). Through a c ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=904724